I'm unsure about this last sentence in the first paragraph of the Turbo docs.
A key attraction with traditional single-page applications, when compared with the old-school, separate-pages approach, is the speed of navigation. SPAs get a lot of that speed from not constantly tearing down the application process, only to reinitialize it on the very next page.
When this mentions "tearing down the application process", this means the server application process does not get torn down on each request or the browser application process? Does the concept of a browser application process exist in this context?